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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 10 Configuring Ethernet OAM
The ethernet oam link-monitor transmit-crc {threshold {high {high-frames | none} | low
{low-frames}} | window milliseconds} command is visible on the router and you are allowed to enter it,
but it is not supported. Use the no form of this commands to disable the configuration. Use the no form
of each command to disable the threshold setting.
Configuring Ethernet OAM Remote Failure Indications
You can configure an error-disable action to occur on an interface if one of the high thresholds is
exceeded, if the remote link goes down, if the remote device is rebooted, if the remote device disables
Ethernet OAM on the interface, or if the power failure occurs on the remote device .
Complete the following steps to enable Ethernet OAM remote-failure indication actions on an interface:
Step 9
ethernet oam link-monitor receive-crc {threshold
{high {high-frames | none} | low {low-frames}} |
window milliseconds}
Note Repeat this step to configure both high and
low thresholds.
(Optional) Configure thresholds for monitoring ingress
frames received with cyclic redundancy code (CRC) errors
for a period of time.
• Enter threshold high high-frames to set a high
threshold for the number of frames received with CRC
errors. The range is 1 to 65535 frames.
• Enter threshold high none to disable the high
threshold.
• Enter threshold low low-frames to set a low threshold
in number of frames. The range is 0 to 65535. The
default is 1.
• Enter window milliseconds to set the a window and
period of time during which frames with CRC errors
are counted. The range is 10 to 1800 and represents the
number of milliseconds in multiples of 100. The
default is 100.
Step 10
ethernet oam link-monitor transmit-crc {threshold
{high {high-frames | none} | low low-frames} |
window milliseconds} }
Use the ethernet oam link-monitor transmit-crc
command to configure an Ethernet OAM interface to
monitor egress frames with CRC errors for a period of
time.
Step 11
[no] ethernet link-monitor on (Optional) Start or stop (when the no keyword is entered)
link-monitoring operations on the interface. Link
monitoring operations start automatically when support is
enabled.
Step 12
end Return to privileged EXEC mode.
Step 13
show ethernet oam status [interface interface-id] Verify the configuration.
Step 14
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface-id Define an interface, and enter interface configuration
mode.